What is your quality control process?

We perform 100% inspection on products. Finished products undergo random visual and function inspections following uniform instructions.

How do you handle shipping and delivery?

We ship via Sea, Air, or Express (FedEx/UPS/DHL/TNT) from Shenzhen or HongKong ports. Delivery takes around 7 days by express.

What certifications does your factory have?

Our factory is certified with ISO9001:2015, ensuring standardized management and quality control systems.

Standard, Inch Measurements Stepped Screws for Rotating Joints

Name: Standard, Inch Measurements Stepped Screws for Rotating Joints
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 795721762

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$5.47

100 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Low Head Shoulder Bolt

Price

Negotiated

Quality Control

100% Inspection

OEM

Yes

Lead Time

3-7 Days

Delivery Time

7 Days Around by FedEx/UPS/DHL/TNT

Delivery Way

by Sea,Air,Express

Transport Package

Poly Bag-Small Box-Carton with Label

Specification

Base on the quantity of goods

Trademark

Origin

China

HS Code

73181600

Production Capacity

3000 Units Per Day

Key features

OEM/ODM Customization: Supports full customization from samples, designs, or drawings with flexible options.

100% Quality Inspection: Strict quality control with 100% inspection and random visual/function checks.

Fast Lead Time: Standard lead time of 3-7 days, within 15 workdays for both peak and off seasons.

Low MOQ: Minimum Order Quantity is only 1 PCS, suitable for small batch testing.

Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

ISO9001 Certified: Manufacturer certified with ISO9001:2015 management system for quality assurance.

Global Shipping Options: Delivers via Sea, Air, or Express (FedEx/UPS/DHL/TNT) from Shenzhen/HongKong.

Professional R&D Team: Backed by 6 R&D engineers and 12 production lines for reliable manufacturing.

Company profile

In-stock CapacityFast DeliveryYears of Export ExperienceCustomization from Designs

Dongguan Zhengchen Hardware Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤4.21h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory in Dongguan operating in manufacturing. It demonstrates substantial customization, OEM and ODM capabilities, independent R&D activity, and six R&D engineers responsible for technical support and new product development. Manufacturing support includes valid contracts with related subcontractors, inventory capability, and stated peak- and off-season lead times within 15 working days. Quality and service processes are documented, including finished-product inspection, corrective and preventive actions, and complaint handling. The supplier has exported for 11 years, with exports representing 11%–20% of total sales, and is located near Shenzhen Port. Evidence is insufficient to confirm certifications, detailed after-sales performance, or financial credibility. The supplier lacks an available SDK, overseas warehouse, and overseas showroom.

Supplier typeThe supplier is explicitly identified as a factory located in Dongguan, and its associated companies operate in manufacturing. This supports classification as a manufacturing supplier rather than a trading-only company.

After-Sales capabilityThe supplier has six R&D engineers whose responsibilities include technical support for production and after-sales service. It also has documented complaint-handling and corrective/preventive-action procedures with records, but no specific after-sales service performance or coverage details are provided.

R&D capabilityThe supplier reports new products in the past year, provides ODM services, and has an independent R&D department. Six R&D engineers handle technical confirmation, production and after-sales support, and new product development; however, no SDK is available.

Production capacityProduction support is evidenced by six quality-control staff, four quality-control test equipment units, valid contracts with associated subcontractors, inventory capability, and stated lead times within 15 working days in both peak and off seasons. The supplier also reports 172 qualified service-capability suppliers, although detailed production capacity volumes are not provided.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization. It also provides customized processing of non-standard parts and OEM one-stop solutions, demonstrating broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and describes delivering complete solutions and non-standard-part processing for customer needs. No named customers, project examples, or independently verifiable case details are supplied.